does smoking weed cause the same damage as cigarettes Marijuana, Cigarette Smokers at Increased Risk of Emphysema Smoking and High Blood Pressure:

It acts as a stimulant in small doses and is highly addictive

A quarter to a third of all smokers suffer from chronic obstructive pulmonary disease also known as emphysema which is an incurable lung disease causing restricted airflow and breathing problems that can make sufferers feel like they are trying to breathe underwater

His suggestion is for researchers in future studies to look at the amount of e-cigarette use and the relative risk of heart failure with exposure levels

Except for ethanol and nicotine, for which certain distributions could be fitted to the data for the European countries, uniform probability distributions were chosen in all other cases as only minimum/maximum prevalence values for Europe in total were available